summaryrefslogtreecommitdiff
path: root/Master/texmf-dist/doc/latex/texpower/FAQ-display.tex
blob: e5b983fd433c539b06648bd9f9129c37a516ab96 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
%%
%% This is file `FAQ-display.tex',
%% generated with the docstrip utility.
%%
%% The original source files were:
%%
%% texpower-doc.dtx  (with options: `faq-disp,faq,end')
%% 
%% --------------------------------------------------------------
%% TeXPower bundle - dynamic online presentations with LaTeX
%% Copyright (C) 1999-2004 Stephan Lehmke
%% 
%% This program is free software; you can redistribute it and/or
%% modify it under the terms of the GNU General Public License
%% as published by the Free Software Foundation; either version 2
%% of the License, or (at your option) any later version.
%% 
%% This program is distributed in the hope that it will be useful,
%% but WITHOUT ANY WARRANTY; without even the implied warranty of
%% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
%% GNU General Public License for more details.
%% --------------------------------------------------------------
%% 
%% The list of all files belonging to the TeXPower bundle is
%% given in the file `00readme.txt'.
%% 
\ProvidesFile{FAQ-display.tex}%
      [2004/07/27 TeXPower FAQ]
%-----------------------------------------------------------------------------------------------------------------
% File: FAQ-display.tex
%
% Frequently Asked Questions list for the TeXPower bundle (screen version).
%
% This file can be compiled with pdfLaTeX or (standard) LaTeX. When using standard LaTeX, the dvi file produced should
% be processed with
%
% dvips -Ppdf -j0 FAQ-display
%
% afterwards processing the resulting ps file with
%
% distill FAQ-display.ps
%
% (The syntax is for a unix system with tetex 1.0 and distiller 3. Modify appropriately for other configurations.)
%
% The resulting pdf file is meant for presenting `interactively' with Adobe Acrobat Reader.
%
%-----------------------------------------------------------------------------------------------------------------
% Autor: Stephan Lehmke <Stephan.Lehmke@cs.uni-dortmund.de>
%
% v0.0.1 May 31, 2000: First version for the pre-alpha release of TeXPower.
%
% v0.0.2 Jun 14, 2000: Changed slidesmag to 4 so slides look less `squeezed'. The `display' version is for demonstrating
%                      effects, not a template for `real' presentations.
%

%-----------------------------------------------------------------------------------------------------------------
% Enable all color emphasis and highlighting options; use a light background and slifonts.

\PassOptionsToPackage{coloremph,colormath,colorhighlight,lightbackground}{texpower}
\RequirePackage{tpslifonts}

% Input the generic preamble.

\input{__TPpreamble}
\hypersetup{pdftitle={TeXPower Frequently Asked Questions list}}

\slidesmag{4}

% The package soul is needed for \highlighttext to work.

\usepackage{soul}


% The following package makes code look a little nicer, but it may not be present on all systems.

\IfFileExists{cmtt.sty}{\usepackage[override]{cmtt}}{}

\usepackage{fancyvrb}

\usepackage{array}

\usepackage{longtable}

%-----------------------------------------------------------------------------------------------------------------
% Finally, everything is set up. Here we go...
%
\begin{document}
\begin{slide}
%
%-----------------------------------------------------------------------------------------------------------------
% Autor: Stephan Lehmke <Stephan.Lehmke@cs.uni-dortmund.de>
%
% v0.0.1 May 31, 2000: First version for the pre-alpha release of TeXPower.
%
% v0.0.2 Jun  9, 2000: Some additions in the `problems' and `how to' section.
%
% v0.0.3 Jun 15, 2000: Additions in the `usage', `how to', and `problems' sections.
%
% v0.0.4 Jun 22, 2000: Additions in the `usage' and `problems' section.
%
% v0.0.5 May 15, 2003: Update related to move to SourceForge.net.
%
\def\docversion{v0.0.5 of May 15, 2003}
\def\tpversion{v0.0.9d of May 15, 2003}

\providecommand{\vanishcolor}{}

\DefineVerbatimEnvironment{LaTeXCode}{Verbatim}
{gobble=2,formatcom=\codeswitch,frame=single,numbers=left,xleftmargin=1em,numbersep=.5em}

%-----------------------------------------------------------------------------------------------------------------
%
\makeslidetitle
{%
  Frequently asked questions list%
  \thanks{FAQ \docversion\ for \TeX Power \tpversion\ (alpha).}%
  }%

\setcounter{firststep}{0}

\tableofcontents

\newslide

%-----------------------------------------------------------------------------------------------------------------
%
\section{General}
\subsection{Where can I get the newest version of the \TeX Power FAQ\,?}
You can download the latest version of the \TeX Power FAQ from the following URLs:

\begin{center}
Screen version:\\
\url{http://texpower.sourceforge.net/doc/FAQ-display.pdf}

Printout version:\\
\url{http://texpower.sourceforge.net/doc/FAQ-printout.pdf}
\end{center}


\newslide

\subsection{What is \TeX Power\,?}
The \TeX Power bundle contains style and class files for creating dynamic online presentations with \LaTeX.

The heart of the bundle is the package \code{texpower.sty} which implements some commands for presentation effects. This
includes setting page transitions, color highlighting and displaying pages incrementally.

The document class \code{powersem.cls} is a wrapper for seminar which sets up everything for dynamic presentations.


\newslide

\subsection{Where can I obtain \TeX Power\,?}
The complete bundle, together with its documentation, can be found under the URL
\begin{center}
  \url{http://texpower.sourceforge.net/}
\end{center}

\newslide

\subsection{Where can I discuss \TeX Power or ask for help\,?}
Bug and problem reports should go to
\href{http://sourceforge.net/tracker/?group_id=60743&atid=495145}{the bug tracker}.

Discussions about \TeX Power should take place on
\href{http://lists.sourceforge.net/lists/listinfo/texpower-users/}{the mailing list}
or in
\href{http://sourceforge.net/forum/forum.php?forum_id=204738}{the discussion forum}.


\newslide

\subsection{What alternatives are there to using \TeX Power\,?}
The most prominent alternative to \TeX Power is the \concept{Pdf Presentation Post Processor} PPower4, the homepage of
which is
\begin{quote}
  \url{http://www-sp.iti.informatik.tu-darmstadt.de/software/ppower4/}
\end{quote}

Another alternative is the \concept{Utopia PDF Presentations Bundle}, which provides a complete presentation design
environment. Its home page is
\begin{quote}
  \url{http://www.utopiatype.com.au/products/ubundle.html}
\end{quote}

Comparisons of different presentation packages can be found on the home page of \name{Prof.\,D.\,P.\,Story}:
\begin{quote}
  \url{http://www.math.uakron.edu/~dpstory/pdf_demos.html}
\end{quote}
and in the talk held by \name{Ross Moore} at the \name{California Institute of Technology} on 8th May 2000:
\begin{quote}
  \url{http://www.cds.caltech.edu/caltex/2000/}
\end{quote}





\newslide

%-----------------------------------------------------------------------------------------------------------------
%
\section{Usage}

\subsection{How do I design a presentation with \TeX Power\,?}
It should be stressed that \TeX Power is \underl{not} (currently) a complete presentation package. It just adds dynamic
presentation effects (and some other gimmicks specifically interesting for dynamic presentations) and should always be
combined with a document class dedicated to designing presentations (or a package like
\href{ftp://ftp.dante.de/tex-archive/help/Catalogue/entries/pdfslide.html}{\code{pdfslide}}).

There are demos in the \href{http://texpower.sourceforge.net/doc/}{\code{doc}} directory for most
popular presentation-making document classes and packages.


\newslide

\subsection{I find \TeX Power very complicated. How can I learn how to realize dynamic effects\,?}

As always with \TeX, you should first make up your mind what kind of effect you desire, and what \LaTeX{} structures
will be involved.

Then you should check the examples in the \href{http://texpower.sourceforge.net/doc/}{\code{doc}}
directory for anything similar to what you want. If you find anything suitable, read the corresponding code. There are
some inline comments to explain what's going on. Print out the
\href{http://texpower.sourceforge.net/doc/manual.pdf}{\code{manual}} for documentation of the \TeX
Power commands.

Further `recepies' can be found in section \ref{Sec:HowTo}.

If you don't find anything suitable you can modify to your needs, and can't figure out from the documentation how to
achieve your aims, please ask on
\href{http://lists.sourceforge.net/lists/listinfo/texpower-users/}{the mailing list}. If
you've found an application for \TeX Power not covered by the examples, a new example should be created.


\newslide

\subsection{Can I combine \TeX Power with PPower4\,?}
There is no problem postprocessing documents in which \TeX Power is used. This can be useful, for instance, for
realising structured backgrounds with the \code{background} package from the
\href{http://www-sp.iti.informatik.tu-darmstadt.de/software/ppower4/}{PPower4 bundle}.

If there are presentation effects for which you'd like to use PPower4's implementation of the \macroname{pause} command,
then just load PPower4's \code{pause} package. PPower4's definition of \macroname{pause} will override
\code{texpower}'s. Then you can combine PPower4's \macroname{pause} functionality with \TeX Power's \macroname{stepwise}
functionality, for maximum expressive power.

\newslide

\subsection{I'm missing some of the classes and packages used in the demo and example files.}

First of all, it has to be said that \TeX Power makes use of some `modern' features which have been introduced into the
\TeX{} System quite recently and are evolving swiftly. The core of the \code{texpower} package, namely the commands
\macroname{pause} and \macroname{stepwise} is implemented in `pure' \LaTeX{} and should be largely independent of any
fancy extensions, but to get most out of \TeX Power's presentation features and process the more advanced examples, it
is recommended to have a moderately new \TeX{} distribution installed (rule of thumb: not older than one year).

But even if your distribution is quite new, it might not contain some of the classes and packages used by the demos and
examples. Here's a list of (hopefully all of) the packages and classes used (which are not part of core \LaTeX) and
their availability:


\newlength{\twidth}%
{%
  \makeatletter
  \ifthenelse{\boolean{display}}{\def\@outputpage{\setbox\@cclv\box\@outputbox\slide@output}}{}%
  \makeatother
  \setlength{\twidth}{\linewidth-\widthof{\code{pdfscreen}}-2cm-6\tabcolsep}%
\begin{longtable}{lp{2cm}>{\raggedright\footnotesize}p{\twidth}}
  Package&used in&\normalsize available from\tabularnewline\hline\endhead
  \href{ftp://ftp.dante.de/tex-archive/help/Catalogue/entries/hyperref.html}{\code{hyperref}}&most
  &\href{http://www.ctan.org/}{CTAN}, e.\,g.\
  \url{ftp://ftp.dante.de/tex-archive/macros/latex/contrib/supported/hyperref}
  \tabularnewline
  \href{ftp://ftp.dante.de/tex-archive/help/Catalogue/entries/url.html}{\code{url}}&most
  &\href{http://www.ctan.org/}{CTAN}, e.\,g.\ \url{ftp://ftp.dante.de/tex-archive/macros/latex/contrib/other/misc}
  \tabularnewline
  \href{ftp://ftp.dante.de/tex-archive/help/Catalogue/entries/soul.html}{\code{soul}}&many
  &\href{http://www.ctan.org/}{CTAN}, e.\,g.\ \url{ftp://ftp.dante.de/tex-archive/macros/latex/contrib/supported/soul}
  \tabularnewline
  \href{ftp://ftp.dante.de/tex-archive/help/Catalogue/entries/pstricks.html}{\code{pstricks}}
  &\small\code{fulldemo}, \code{picexample}
  &\href{http://www.ctan.org/}{CTAN}, e.\,g.\ \url{ftp://ftp.dante.de/tex-archive/graphics/pstricks}
  \tabularnewline
  \href{ftp://ftp.dante.de/tex-archive/help/Catalogue/entries/xr.html}{\code{xr-hyper}}
  &\small\code{manual}
  &\href{http://www.ctan.org/}{CTAN}, e.\,g.\
  \url{ftp://ftp.dante.de/tex-archive/macros/latex/contrib/supported/hyperref}
  \tabularnewline
  \href{ftp://ftp.dante.de/tex-archive/help/Catalogue/entries/fancyvrb.html}{\code{fancyvrb}}
  &\small\code{FAQ}
  &\href{http://www.ctan.org/}{CTAN}, e.\,g.\
  \url{ftp://ftp.dante.de/tex-archive/macros/latex/contrib/supported/fancyvrb}
  \tabularnewline
  \href{ftp://ftp.dante.de/tex-archive/help/Catalogue/entries/pdfscreen.html}{\code{pdfscreen}}
  &\small\code{pdfscrdemo}
  &\href{http://www.ctan.org/}{CTAN}, e.\,g.\
  \url{ftp://ftp.dante.de/tex-archive/macros/latex/contrib/supported/pdfscreen}
  \tabularnewline
  \href{ftp://ftp.dante.de/tex-archive/help/Catalogue/entries/pdfslide.html}{\code{pdfslide}}
  &\small\code{pdfslidemo}
  &\href{http://www.ctan.org/}{CTAN}, e.\,g.\
  \url{ftp://ftp.dante.de/tex-archive/macros/latex/contrib/supported/pdfslide}
  \tabularnewline
  \href{ftp://ftp.dante.de/tex-archive/help/Catalogue/entries/ppower4.html}{\code{pp4slide}}
  &\small\code{pp4sldemo}
  &\href{http://www.ctan.org/}{CTAN}, e.\,g.\
  \url{ftp://ftp.dante.de/tex-archive/support/ppower4/pp4sty.zip}
  \tabularnewline
  \href{ftp://ftp.dante.de/tex-archive/help/Catalogue/entries/ifmslide.html}{\code{ifmslide}}
  &\small\code{ifmslidemo}
  &\href{http://www.ctan.org/}{CTAN}, e.\,g.\
  \url{ftp://ftp.dante.de/tex-archive/macros/latex/contrib/supported/ifmslide}
  \tabularnewline
\end{longtable}
}

{%
  \makeatletter
  \ifthenelse{\boolean{display}}{\def\@outputpage{\setbox\@cclv\box\@outputbox\slide@output}}{}%
  \makeatother
  \setlength{\twidth}{\linewidth-\widthof{\code{scrartcl}}-2cm-6\tabcolsep}%
\begin{longtable}{lp{2cm}>{\raggedright\footnotesize}p{\twidth}}
  Class&used in&\normalsize available from\tabularnewline\hline\endhead
  \href{ftp://ftp.dante.de/tex-archive/help/Catalogue/entries/seminar.html}{\code{seminar}}&most
  &\href{http://www.ctan.org/}{CTAN}, e.\,g.\
  \url{ftp://ftp.dante.de/tex-archive/macros/latex/contrib/other/seminar}
  \tabularnewline
  \href{ftp://ftp.dante.de/tex-archive/help/Catalogue/entries/koma-script.html}{\code{scrartcl}}&most
  &\href{http://www.ctan.org/}{CTAN}, e.\,g.\
  \url{ftp://ftp.dante.de/tex-archive/macros/latex/contrib/supported/koma-script}
  \tabularnewline
  \href{ftp://ftp.dante.de/tex-archive/help/Catalogue/entries/slides.html}{\code{slides}}
  &\small\code{slidesdemo}
  &\href{http://www.ctan.org/}{CTAN}, e.\,g.\
  \url{ftp://ftp.dante.de/tex-archive/macros/latex/base/}
  \tabularnewline
  \href{ftp://ftp.dante.de/tex-archive/help/Catalogue/entries/foiltex.html}{\code{foils}}
  &\small\code{foilsdemo}, \code{pp4sldemo}
  &\href{http://www.ctan.org/}{CTAN}, e.\,g.\
  \url{ftp://ftp.dante.de/tex-archive/nonfree/macros/latex/contrib/supported/foiltex}
  \tabularnewline
  \href{ftp://ftp.dante.de/tex-archive/help/Catalogue/entries/prosper.html}{\code{prosper}}
  &\small\code{prosperdemo}
  &\url{http://prosper.sourceforge.net/}
  \tabularnewline
\end{longtable}
}

\newslide

%-----------------------------------------------------------------------------------------------------------------
%
\section{How do I\dots}\label{Sec:HowTo}

\subsection{How can I incrementally display a paragraph of text\,?}\label{Q:Par}

The easiest solution is to use \macroname{parstepwise}, but if the arguments of \macroname{step} are long, you'll get
problems with line breaks, as \macroname{parstepwise} forces \macroname{step} to put its argument in a box.

You can use \macroname{hidetext} like this:

\begin{LaTeXCode}
  \stepwise[\let\hidestepcontents=\hidetext]
  {\step{Line breaks} \step{work in here.}}
\end{LaTeXCode}


\stepwise[\let\hidestepcontents=\hidetext]
{%
  \ifthenelse{\boolean{display}}
  {%
    yields
    \present
    {%
      \begin{minipage}{7em}
        \step{Line breaks} \step{work in here.}
      \end{minipage}%
      }
    }
  {}

  But note that \macroname{hidetext}, being implemented using the \code{soul} package, is quite fragile (compare
  \ref{Sec:hidetext}).

  }

\newslide

If you're not using structured backgrounds, \macroname{hidevanish} is another alternative which can be used exactly like
\macroname{hidetext}, but is much more robust (note that this will fail whenever your text should appear in front of
different background colors, for any reason).

In the argument of \macroname{hidevanish}, which uses \macroname{textcolor}, paragraph breaks are not allowed. Using
\macroname{vstep} is a little less restrictive:


\begin{LaTeXCode}
  \stepwise
  {%
    {\vstep Line and paragraph breaks
    \vstep work in here.\par Yeah!}%
    }
\end{LaTeXCode}

\stepwise[\renewcommand{\vanishcolor}{presentcolor}]
{%
  \ifthenelse{\boolean{display}}
  {%
    yields
    \present
    {%
      \begin{minipage}{13em}
        \vstep Line and paragraph breaks \vstep work in here.\par Yeah!
      \end{minipage}%
      }
    }
  {}
}

\newslide

To facilitate the decision, here's a side-by-side comparison of the pros and cons:

\macroname{parstepwise}:
\begin{itemize}
\item[\origmath{+}] robust
\item[\origmath{+}] works with structured backgrounds
\item[\origmath{-}] no automatic line breaks in \macroname{step}'s argument
\item[\origmath{-}] no paragraph breaks in \macroname{step}'s argument
\end{itemize}

\macroname{hidetext}:
\begin{itemize}
\item[\origmath{-}] very fragile
\item[\origmath{+}] works with structured backgrounds
\item[\origmath{+}] allows automatic line breaks in \macroname{step}'s argument
\item[\origmath{-}] no paragraph breaks in \macroname{step}'s argument
\end{itemize}

\newslide

\macroname{hidevanish}:
\begin{itemize}
\item[\origmath{+}] robust
\item[\origmath{-}] fails with structured backgrounds
\item[\origmath{+}] allows automatic line breaks in \macroname{step}'s argument
\item[\origmath{-}] no paragraph breaks in \macroname{step}'s argument
\end{itemize}

\macroname{vstep}:
\begin{itemize}
\item[\origmath{+}] very robust
\item[\origmath{-}] fails with structured backgrounds
\item[\origmath{+}] allows automatic line breaks
\item[\origmath{+}] allows paragraph breaks
\end{itemize}

\newslide


\subsection{Instead of making text appear `out of nowhere', I'd rather just change colors from `dimmed' to normal.}

There are some analogies between this item and \ref{Q:Par}.

If you're using \code{texpower}'s standard colors, probably \macroname{hidedimmed} does what you want:

\begin{LaTeXCode}
  \stepwise[\let\hidestepcontents=\hidedimmed]
  {%
    \step{This works with} \step{\emph{all}}
    \step{\highlighttext{highlighting} commands.}%
    }
\end{LaTeXCode}

\stepwise[\let\hidestepcontents=\hidedimmed]
{%
  \ifthenelse{\boolean{display}}
  {%
    yields
    \present
    {%
      \begin{minipage}{10em}
        \step{This works with} \step{\emph{all}} \step{\highlighttext{highlighting} commands.}
      \end{minipage}%
      }
    }
  {}
  }

\newslide

In the argument of \macroname{hidedimmed}, which uses \macroname{textcolor}, paragraph breaks are not allowed. Using
\macroname{dstep} is a little less restrictive. The following achieves the same result as above:

\begin{LaTeXCode}
  \stepwise
  {%
    \dstep This works with \dstep \emph{all}
    \dstep \highlighttext{highlighting} commands.%
    }
\end{LaTeXCode}

\newslide

If the dimmed colors look too fancy to you, you can also use \macroname{vstep} for this purpose, setting
\macroname{vanishcolor} to some `dimmed' color:

\begin{LaTeXCode}
  \stepwise[\renewcommand{\vanishcolor}{inactivecolor}]
  {%
    \vstep This works with \vstep \emph{all}
    \vstep \highlighttext{highlighting} commands.%
    }
\end{LaTeXCode}

\stepwise[\renewcommand{\vanishcolor}{inactivecolor}]
{%
  \ifthenelse{\boolean{display}}
  {%
    yields
    \present
    {%
      \begin{minipage}{10em}
        \vstep This works with \vstep \emph{all} \vstep \highlighttext{highlighting} commands.
      \end{minipage}%
      }
    }
  {}
  }

Achieving the same with \macroname{hidevanish} is left as an exercise to the reader.

\newslide

\subsection{\macroname{dstep} and \macroname{hidedimmed} work only with \code{texpower}'s standard colors. How can I dim
  my own colors\,?}

\code{texpower} maintains a list of colors which will be affected by \macroname{dimcolors} (which is behind
\macroname{dstep} and \macroname{hidedimmed}).

You can add your own colors to this list by issuing \commandapp{addTPcolor}{mycolor}. Then you only have to define
another color \code{dmycolor} which will be replaced for \code{mycolor} automatically when \macroname{dimcolors} is
executed.

\newslide

For instance:
{\small
\begin{LaTeXCode}
  \definecolor{mycolor}{rgb}{1,0.5,0}%
  \definecolor{dmycolor}{rgb}{0.9,0.8,0.6}%
  \addTPcolor{mycolor}
  \stepwise
  {\dstep My \emph{own} \dstep \textcolor{mycolor}{color}.}
\end{LaTeXCode}
}%

\ifthenelse{\boolean{display}}
{%
  \definecolor{mycolor}{rgb}{1,0.5,0}%
  \definecolor{dmycolor}{rgb}{0.9,0.8,0.6}%
  \addTPcolor{mycolor}%
  \liststepwise
  {%
    yields
    \present
    {%
      \dstep My \emph{own} \dstep \textcolor{mycolor}{color}.
      }
    }
  }
{}

Note that if you ever wish to use \macroname{enhancecolors} or \macroname{highlightenhanced}, you'll also need an
\emph{enhanced} version of your new color named \code{emycolor}.

If you wish to use one of the commands \macroname{whitebackground}, \macroname{lightbackground},
\macroname{darkbackground}, or \macroname{blackbackground}, you'll need even more variants of your new color. In this
case, you'll better define it in the file \code{tpsettings.cfg} (which contains an example).


\newslide

%-----------------------------------------------------------------------------------------------------------------
%
\section{Problems}

\subsection{I'm loading the \code{texpower} package, but dynamic features don't seem to work.}

Remember that you have to turn on dynamic features explicitly by giving the \code{display} option either to
\code{texpower} or as a global option. Otherwise, a printout version of your document is produced.

\newslide

\subsection{When I use the \code{colormath} option, my displayed formulae are not colored.}

Don't use the \TeX{} environment \code{\$\$}\dots\code{\$\$} for displayed formulae if you want to profit from math
coloring.

\code{texpower} supports \LaTeX's environments \macroname{[}\dots\macroname{]}, \code{displaymath}, \code{equation},
\code{eqnarray}, and \code{eqnarray*}. It also works with the diverse displayed math environments from the
\href{ftp://ftp.dante.de/tex-archive/help/Catalogue/entries/amsmath.html}{\code{amsmath}} package.

Replacing \code{\$\$}\dots\code{\$\$} everywhere by \macroname{[}\dots\macroname{]} should solve this problem.

\newslide

\subsection{It seems I can't use \macroname{vfill} in combination with \macroname{pause}.}

This is a problem indeed, as \LaTeX{} never gets to see anything after \macroname{pause} when the first part of the
sequence is produced. You can use \macroname{vfill} with \macroname{stepwise} if you
\begin{enumerate}
\item use a configuration where \macroname{step} leaves blank space (to ensure proper vertical spacing);
\item put \emph{all} \macroname{vfill}s into the argument of \macroname{stepwise}, \emph{outside} the argument of any
  \macroname{step}.
\end{enumerate}

For instance:

\begin{LaTeXCode}
  \parstepwise
  {\step{One.}\vfill\step{Two.}\vfill\step{Three.}}
\end{LaTeXCode}

\parstepwise
{%
  \ifthenelse{\boolean{display}}
  {%
    yields
    \present
    {%
      \begin{minipage}[c][10ex][s]{10em}
        \step{One.}\vfill\step{Two.}\vfill\step{Three.}
      \end{minipage}
      }
    }
  {}
  }


\newslide

\subsection{When I use \LaTeX+\code{dvips}+\code{distiller}, the result looks strange and `hyper' features don't work.}

Check the \code{log} file of your document. If it contains the line
{\codeswitch%
\begin{verbatim}
*hyperref using default driver hypertex*
\end{verbatim}%
}%
then the default hyperref driver for your system is not suited for processing by \code{dvips}+\code{distiller}.

Either you set another default driver (for instance, in the file \code{hyperref.cfg}), or you use the option
\code{dvips} in your document as a global option or an option to \commandapp{usepackage}{hyperref}. See the
documentation of the \href{ftp://ftp.dante.de/tex-archive/help/Catalogue/entries/hyperref.html}{\code{hyperref}} package
for details.

\newslide

\subsection{When using \macroname{highlighttext} or \macroname{hidetext}, I'm getting strange error messages.}
\label{Sec:hidetext}

Note that both these commands are implemented using the
\href{ftp://ftp.dante.de/tex-archive/help/Catalogue/entries/soul.html}{\code{soul}} package. \code{soul} has some rather
severe restrictions concerning what is allowed to appear in the argument of commands using it. Consult the documentation
of \href{ftp://ftp.dante.de/tex-archive/help/Catalogue/entries/soul.html}{\code{soul}} for a detailed description of
these restrictions.

The most prominent one is that almost no \LaTeX{} command is allowed in the argument of a command implemented using
\code{soul}. For instance, to use an emphasis or highlighting command like \macroname{emph}, you have to use a sequence
of \macroname{highlighttext} commands, putting \macroname{emph} `outside'. Expect glitches in display quality though.

\code{\small\commandapp{highlighttext}{This~}\discretionary{\%}{}{}\commandapp{emph}{\commandapp{highlighttext}{annoying~}}\discretionary{\%}{}{}\commandapp{highlighttext}{behaviour}}
yields \highlighttext{This }\emph{\highlighttext{annoying }}\highlighttext{behaviour}.

\newslide

Another restriction is that accents are separated from the characters they belong to and break. You have to enclose the
complete accented character with braces or use an appropriate input encoding, typing accented characters `as one'.
\begin{center}
  \begin{tabular}{l@{ yields }l}
    \commandapp{highlighttext}{S\{\macroname{"}u\}\macroname{ss} es}&\highlighttext{S{\"u}\ss es}\\
    \commandapp{highlighttext}{Süßes}&\highlighttext{Süßes}\\
  \end{tabular}
\end{center}

\newslide

\subsection{Inside the argument of \macroname{stepwise}, all counters seem to be freezed on all pages of the sequence
  generated. How can I use a self-defined counter which does not freeze\,?}

Freezing counters is a desirable behaviour in general, for instance to stop equation numbers from going astray.

But \code{texpower} maintains a list of counters which are \emph{not} freezed, containing for instance the counter
\code{step}.

If you need a counter for special effects while the incremental sequence is generated (for instance: generating a
sequence of MetaPost figures with the \code{emp} and \code{feynmp} packages), use
\begin{LaTeXCode}
  \releasecounter{mycounter}
\end{LaTeXCode}
to release the counter \code{mycounter}.
\end{slide}
\end{document}
\endinput
%%
%% End of file `FAQ-display.tex'.